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California Regi nal Water Quality dooitrol Board - <br /> Central Valley Region = <br /> Steven T.Butler,Chair Grav Davis <br /> ston H.llickosGarernor <br /> Serretarv,(or Sat:raito Main office <br /> Environmental Interact Address: htip://www.swrcb.ca.gov/-mgcb5 <br /> Protection 3443 Routier Road,Suite A.Sacramento,California 95827-3003 <br /> Phone(916)2255-3000•FAX(916)255-3015 <br /> 16 February 2000 <br /> CERTIFIED MAIL# CERTIFIED MAIL# <br /> 7099322000053846-0013 7099322000053846-0020 <br /> Mr. Richard Bokides Mr. Cecil Dillon <br /> 6421 Capitol Avenue 1820 West Kettleman Lane, Suite E <br /> Lodi. CA 95242 Lodi, CA 95242 <br /> NOTIFICATION OF REGULATORY LEAD TRANSFER, FLAG CITY CHEVRON, <br /> 6421 CAPITOL AVENUE, LODI, SAN JOAQUIN COUNTY <br /> Leaks from underground storage tanks at Flag City Chevron, 6421 Capitol Avenue in Lodi, have <br /> resulted in MtBE concentrations in groundwater as high as 1,600 micrograms per liter(µg/1). The <br /> plume of MtBE contaminated groundwater has reached a drinking water supply well at Rocky's <br /> Restaurant where MtBE exceeds the Secondary Maximum Contaminant Level of 5 µ.g/1. Two additional <br /> water supply wells are within 800 feet of the Flag City Chevron underground storage tanks. Due to the <br /> contamination in the supply well at Rocky's Restaurant and the threat to nearby municipal wells,the <br /> Regional Board is assuming the regulatory lead on this site from the San Joaquin County Environmental <br /> Health Division. <br /> In order to respond to the threat from MtBE we are preparing a Cleanup and Abatement Order(Order) <br /> for the signature of the Regional Board Executive Officer. The Order requirements include an expedited <br /> investigation and cleanup of the MtBE plume, supplying Rocky's Restaurant with bottled drinking <br /> water, sampling two Flag City wells, and placement of cluster wells to determine the vertical movement <br /> of the MtBE plume. You are to initiate your quarterly monitoring by 25 February 2000 as scheduled <br /> previously with San Joaquin County Environmental Health Division staff. By separate letter, we will <br /> transmit thqprder with dates of compliance. If you would like to discuss the Order, please call Marty <br /> Hartzell at {916) 255-3115. <br /> l��II <br /> GORDON"L. BOGGS <br /> UST Program Manager <br /> cc: Ms. Frances McChesney, Office of Chief Counsel, State Water Resources Control Board <br /> Mr. Alan Patton, State Water Resources Control Board, Sacramento <br /> Ms. Margaret Lagorio, San Joaquin County Environmental Health Division, Stockton <br /> Mr. Timothy J. Cuellar, Advanced GeoEnvironmental, Incorporated, Stockton <br /> California Environmental Protection Agency <br /> eoi Recyrled Paper <br />